Pumping apparatus.



X. CAVERNO.

PUMPING APPARATUS.

APPLICATION mzo Sl -2PT.27.1915.

' Patented Sept. 17; 1918.

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m: mums PETERS 50.. PMOm-LITNQ. WASHINGTON, n. c,

X. CAVERNO.

PUMPING APPARATUS.

APPLICATION FILED SEPT. 27. I915.

'2 SHEETSFSHEET 2.

IIIIIIIMIIIIIII rm: NORlIIS PE7RS Co. PNOTD-L/THO., WASHING run. :1 c.

Patented Sept. 17', 1918.

XENOPHON CAVERNO, OF KEWANEE, ILLINOIS.

PUMPING APPARATUS.

Specification of Letters Patent.

Patented Sept. 17, 1918.

Application filed September 27, 1915. Serial No. 52,821.

To all whom it may concern Be it known that I, XENOPHON CAv-ERNo, a citizen of the United States, residing at Kewanee, county of Henry, and State of Illinois, have invented new and useful Improvements in Pumping Apparatus, of which the following is a specification.

My invention relates to improvements in piston pumps and has particular reference to that class of pumps which are adapted to be operated either manually or from a small power unit.

The object of my invention is to provide a simple and inexpensive form of construction in which access to all the moving parts may be had by merely removing one set of bolts without disturbing the alinement of the piston, piston rod and stufiing box, the pump cylinder, valve casing and ducts comprising but two separate members with one of which the pipes may beconne'cted, whereby by removing the other member, access may be had to all working parts without disconnecting said pipes.

A further object of my invention is to provide convenient means for attaching a motor to the pump without disturbing or alteringthe connections ordinarily employed for manual operation.

In the drawings Figure 1 is a side elevation, partly in section on a vertical plane, drawn through the center of the pump cylinder and that portion of the valve chamber in alinement therewith.

Fig. 9. is a rear end elevation with the wall of the valve chamber partially broken away.

Fig. 3 is a plan view with the pump cylinder, valve casing and side duct shown in horizontal sectionon a plane cutting the axisof the cylinder.

Fig. 4 is a rear end view of the pump proper with the valve casing removed.

Like parts are identified by the same reference characters throughout the several views.

A pump cylinder 1 is provided with an integral head 2 provided with a central aperture through which the piston rod 3 passes. The cylinder head 2 is provided with'a socket 4 concentric with the piston rod and adapted to receive a suitable packing which may be compressed in said socket by a gland which .is preferably formed in sections, i. e. a tubular member 5-, and a clamping cap 6. The member 6 is connected with the cylinder head by bolts 8 and clamping nuts 9. The stuffing box being integral and the member v5 independent, a perfect alinement may readily be secured, which will not be disturbed or altered by replacement of packings, owing to the fact that the head 2 is integral. The piston 7 may be of any ordinary construction.

The rear end of the cylinder 1 is provided with an outwardly projecting flange 10. The cylinder is open at this end as is also the case with a duct 11 which extends along the side of the cylinder and communicates with the front end of the cylinder through a lateral port 12 located immediately back of the cylinder head 2. The cylinder is mounted upon a suitable base 13 to which it may be secured by bolts 14-. The piston rod may be manually actuated by a lever 15 fulcrumed to the base by a link 16 and loosely connected withthe piston rod at 19. A re-' ciprocating motor driven rod 20 passes through the base and is adapted to be connected with the lever 15 at 21, whereby a reciprocating movement of the rod 20 will operate the lever and transmit motion to the piston rod 3. This rod 20, however, will ordinarily be uncoupled when lever 15 is to be manually actuated.

A valve chamber 25 is secured to the rear end of the casting which forms cylinder 1 and duct 11 by means of four bolts 26' which have threaded engagement with the flange 10. This valve chamber is provided with an inlet port QSand anoutlet port 29. Superposed air chamber '30 is connected with the latter and provided with a threaded port 31 with which a delivery pipe may be connected. The supply pipe will of course be connected with the inlet port 28.

The valve chamber is integrally subdivided by two horizontal partitions 35 and 36 and a vertical partition 37 to-form a receiving chamber 38, a chamber 39 in direct communication with the rear end of the pump cylinder, a chamber 4L0 in direct communication with the side duct 11 and an outlet ohamber 4:1. The partitions 35 and 36 constitute the bottom and top walls respectively of the chambers 39 and 40 and these walls are apertured and provided with ordinary check valves 42, 43, 44k and 45, the check Valve 42 controlling the admission of fluid to chamber 39 from the receiving chamber 38 and check valve L3 controlling its discharge therefrom into the outlet chamber 41. Similarly check valve 44 controls the admission and check valve 45 the disharge of fluid to and from the chamber 40.

hen piston 7 moves forwardly, 2'. c. in the direction of the operating lever 15, fluid will be drawn from the supply pipe through chambers 38 and 39 into pump cylinder 1, check valve 42 lifting under pressure of the liquid drawn by the piston suction into the pump cylinder. Simultaneously liquid in the pump cylinder in front of piston '7 is forced through the cylinder port 12 and duct 11 into chamber 40 where its pressure lifts check valve 45 and permits its escape into the outlet chamber 41 and thence through the air chamber to the air chamber outlet 31. The reverse movement of piston 7 similarly draws liquid from the receiving chamber 38 through chamber 40 and duct 11 into the front end of the cylinder and simultaneously forces the liquid previously drawn into the rear end of the cylinder through chamber 39 past check valve 48 into the outlet chamber 41. It will therefore be apparent that the principle of operation is similar to that of any ordinary double acting piston pump.

It will be observed, however, that in my improved structure a removal of the four bolts 26 permits a separation of the pump cylinder 1 and duct 11 from the valve casing so that the pump cylinder may be readily removed if disconnected from the base, and when so removed, access is not only afforded to the piston, but also to the valve chambers and to all fourof the valves 42, 43, 44 and 45. Onlv one packing gasket is required. This gasket 50 is located between the valve casing 25 and the flange 10, a portion of the gasket extending also between the exposed margin of partition 37 and the wall 51 which separates the pump cylinder from the duct 11. By interposing a gasket between the valve casing and the casting which forms cylinder 1 and duct 11, I am enabled to dispense with finishing work on the abutting margins of the casting using merely the rough castings with a gasket sufiiciently thick to provide a water tight packing, notwithstandino' such inequalities of surface as a rough casting presents.

By. providing the base 13 with a slot 53 therein through which the motor driven pump operating rod 20 passes, I am not only enabled to provide a compact structure, but I am also enabled to provide lateral sup port for the connecting rod 20 while permitting the necessary vertical movement i11- cident to its operation by means of a crank. I am therefore able to secure space for a long connecting rod, and correspondingly reduce the angle in which it operates, where the rod receives motion from a driving crank. I also prevent lateral vibration of the pump operating lever 15 by providing the same with a cross head 56 which slides upon a pair of rods 57 secured to the integral cylinder :head 2. One of these rods projects forwardly on each side of the piston rod 3 and extends through suitable apertures in the cross head. 7

By furnishing the valve casing with removable seats and positioning all the valve seats in the horizontal walls of the valve casing, I provide form of construction in which all the valves can be reached for cleaning, removal or replacement and whereby all the valve seats can be easily removed from the walls of the valve casing. The valves 42 and 44 can be lifted out of their seats by reaching through the ports in the valve chamber opposite the cylinder and side duct respectively. After the valves are removed it is easy to apply a tool to the seats whereby they may be lifted out of the valve apertures in the walls. To remove the valves 43 and 45, it is merely necessary to remove the valve seats, whereupon the valves will fall out by gravity, and can be removed from the casing through the openings in the end toward the cylinder. 7

Also by placing all the valves in the horizontal walls of the valve casing, it ispossible to use ordinary check valves which will 7 seat both by gravity and by the pressure of the water above them, and which will lift a sufiicient distance to allow water to enter between the valves and seats when a vacuum is created above the valvesby a movement of the piston in one direction or the other.

I claim- 1. A pump including the combination of a casing member provided'with a cylindrical bore extending into the same from one end, and a duct extending into the same from said end and communicating with the cylinder bore near the opposite end of said member, a piston located in said cylindrical bore and having a piston rod extending through the other end of said member, a Valve chamber having one side open and adapted to be fitted to the walls of the first mentioned member to close the end of said cylinder bore and duct, and a set of valves in said valve chamber separately controlling fluid delivery to and discharge from the cylinder bore and ductrespectively, access to the valves and piston being afiorded by a separation of thefirst mentioned member from said valve casing, together with a base supporting said first mentioned member, a manually operable lever having link connection with said base and also having a link operatively connecting it with said piston, and a connecting rod adapted to connect said lever with a motor, said connecting' rod extending through an aperture in the base and having a. suitable bearing supported from said base, substantially as described. I

2. A pnmp'including the combination with a pump cylinder having an apertured closing head, a piston in said cylinder provided With a piston rod extending through said apertured head, a duct extending from near the head of the cylinder and terminating in a plane cutting the open end of the cylinder, a valve casing removably secured to the end of the cylinder and duct and having openings coinciding with the open ends of the cylinder and duct respectively, said valve casing being subdivided by a vertical partition and two horizontal partitions into a receiving chamber, a chamber in direct communication with the open end of the pump cylinder, a chamber in direct communication With the duct, and an outlet chamber, said valves being disposed in said horizontal walls and affording inlet and outlet ports for the cylinder and duct respectively.

3. A pump including the combination with a pump cylinder having an apertured closing head, a piston in said cylinder provided with a piston rod extending through said head, a duct extending from near the head of the cylinder and terminating in a plane cutting the open end of the cylinder, a valve casing removably secured to the end of the cylinder and duct and having openings co inciding with the open ends of the cylinder and duct respectively, said valve caslng being subdivided by a vertical and two horizontal walls to form receiving, intermediate and outlet chambers, valves in the horizontal walls afiording inlet and outlet ports for the cylinder and duct respectively, a supporting base member, an operating lever pivotally connected with the piston rod, a fulcrum link pivot-ally connecting one end of said lever with said base, guides onnected with the cylinder head on opposite sides of the piston rod, and a cross head connected with'the operating lever and having sliding bearing connection with said guides.

In testimony whereof I affix my signature in the presence of two witnesses.

XENOPHON CAVERNO.

Witnesses ROBERT C. Mon-sn, Jenn CAVERNO.

Copies of this patent may be obtained or five cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

